“Recent research finds that this seemingly perverse response — the use of a mass shooting as a justification for looseninggun laws and calling for moreguns — is actually the norm in the United States. One study, published in the Journal of Public Economics in 2020, examined state legislatures’ policy responses in the wake of mass shootings — and found that they were heavily tilted toward lax regulation.”
https://www.vox.com/policy-and-politics/23142829/uvalde-robb-elementary-mass-shooting-gun-politcal-science